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Old 10-19-2005, 05:17 PM   #1
wrxspdr
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Unhappy After Radiator Replace Car Overheating what else possible??? Please Help

I have my car over at a dealership in NJ cause it decided to have a coolant leak in midtown manhattan.
Here's how it progressed

I posted somthing simular but this is an update and different Question

Temp gauge Shot up yet Engine seemed temp wise cool to touch the hood even when hood opened. Hoped it was a short hence the 9 days of raining and flooding.
Drove a few more blocks looking for a place to park the car remeber NYC here midtown no where to even double park.
Then noticed Coolant leak smell imediately got the car somewhere and parked it over night.
Its at Liberty Sub in NJ they put in the new radiator the old apparently was cracked causing my leak. They said its still overheating what is the culprit do we think its a thermostat. The car was well maintained and wasn't killed or drag raced I do have performance mods on it but nothing drastic engine wise just CAI, Uppipe, Flywheel, Clutch, Underdrive pulleys.
02 Wrx
Any ideas?
Thanks
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Old 10-19-2005, 05:19 PM   #2
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probably still has air in the system. This is the most common reason for over heating after a coolant flush, etc.

edit: especially prevalent on 02's
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Old 10-19-2005, 05:19 PM   #3
wrxspdr
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Would the dealership get that out you would think right?
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Old 10-19-2005, 05:22 PM   #4
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you'd think, but it is a bitch to get all the air out, so I think it's totally possible that they didn't.

Read unabomber's coolant faq. There's a link in that thread about getting all of the air out of the system
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Old 10-19-2005, 05:31 PM   #5
wrxspdr
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Unhappy

Thanks I will dig that thread up
I think it either
Head Gasket (god I hope not I don't deserve that at 80K)
Air like you said
Thermostat
Fan
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Old 10-19-2005, 05:36 PM   #6
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air in the system.. keep on burping it..
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Old 10-19-2005, 05:41 PM   #7
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If it wasn't overheating before the radiator busted, it's probably NOT the headgasket.
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Old 10-19-2005, 06:07 PM   #8
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Yeah like I said the Temp gauge went up all of the sudden but it seemed so unlikely because it was totally fine drivability wise and felt normal. Yet the temp gauge went up prior to me noticing a coolant leak or radiator issue. It happened quickly and I tried my hadest not to leave it like that running for long
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Old 10-19-2005, 06:10 PM   #9
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burp it out
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Old 10-19-2005, 06:39 PM   #10
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It's not unheard of for a dealer to do a cooling system service and fail to remove all the trapped air.
I would think that they put in an updated radiator which has a cap, AFAIK the old version was superceded to the newer type. It's much easier to fill the system without trapping air with the newer radiator, I've done mine a couple of times with zero trapped air, but I suppose it's still possible to get some in there.
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Old 10-19-2005, 06:51 PM   #11
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Yeah I will have to see tommorow what they say they don't work late over there when I bring my car to other dealerships I like to be informed because they tend to stick it to ya. So I can go back with that did you guys see my post with the upper and lower hoses needing to be replaced due to the new radiator. Is that true for sure??? Yes mulder it is the new style radiator with the cap added you are on the money on that as ussual
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Old 10-19-2005, 06:59 PM   #12
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Hm, I don't think the hoses are any different. However the old ones may have been leaking at the ends (not unusual) which would make replacing them a good idea.
My experience with the new radiator with the cap is that if the system is filled slowly with both caps off, there will not be any trapped air. I just did mine again a few weeks ago when a rock took the radiator out and I had to replace it, filled it up as described and drove away. 1200 miles later, no air and the level hasn't changed.
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Old 10-19-2005, 07:08 PM   #13
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They were Perrin Hoses but whatever I will take the loss on that
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Old 10-19-2005, 07:16 PM   #14
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Quote:
Originally Posted by wrxspdr
They were Perrin Hoses but whatever I will take the loss on that
Really, well in that case you should ask for them back. You are entitled to get your old parts back in any case.
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Old 10-20-2005, 12:37 AM   #15
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Default burp

we replaced my turbo and had air bubbles in the coolant, temp raised real fast but engine wasnt really hot! burped it- runs fine, cool and smooth.

good luck
Ryan
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Old 10-20-2005, 08:26 AM   #16
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To properly get all the air out you have to start the motor and run it with the 2nd cap off (the one on the coolant reservoir next to the turbo). You will see coolant flow by if you look inside it. When the level in there drops, you need to add coolant in via this tank. Then wait again until the coolant flows. As the temp rises in the engine and coolant level will start to raise a little. When the level is up to the neck of this reservoir it's time to put the cap on. Basically, as long as there's coolant in this reservoir, then there's no air in the system. Also, once you're done with this, fill the overflow tank with coolant to the MAX line and then watch it for the next week or so. Sometimes the system pulls in a little more coolant as it needs it. BTW, have your climate control on HOT when you do this. You don't have to have the fan blowing, but you must have the temp slider on hot. The heat exchanger for the climate control can sometimes trap some air as well.
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Old 10-20-2005, 10:37 AM   #17
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No way the dealership could mess that up? I have never been to this one they seem to keep saying they will get it back in today and that its some kind of internal engine problem. But they haven't done much else yet. I still think they messed up stellar subaru service dept or not. I wish it was close to my house but its at least and hour away.
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Old 10-20-2005, 11:22 AM   #18
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Again man, relax.

If it wasn't doing this before the radiator was replaced it is certainly air in the lines.
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Old 10-20-2005, 11:27 AM   #19
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If you'd ever done a radiator swap yourself, you'd appreciate how much of a pain in the arse getting all of the air out can be for ANYONE. Burp it yourself, have a more experience buddy help you out or make the service guys fix it. Post # 16 FTW!
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Old 10-20-2005, 12:38 PM   #20
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Quote:
Originally Posted by JRSCCivic98
To properly get all the air out you have to start the motor and run it with the 2nd cap off (the one on the coolant reservoir next to the turbo). You will see coolant flow by if you look inside it. When the level in there drops, you need to add coolant in via this tank. Then wait again until the coolant flows. As the temp rises in the engine and coolant level will start to raise a little. When the level is up to the neck of this reservoir it's time to put the cap on. Basically, as long as there's coolant in this reservoir, then there's no air in the system. Also, once you're done with this, fill the overflow tank with coolant to the MAX line and then watch it for the next week or so. Sometimes the system pulls in a little more coolant as it needs it. BTW, have your climate control on HOT when you do this. You don't have to have the fan blowing, but you must have the temp slider on hot. The heat exchanger for the climate control can sometimes trap some air as well.
...supposed to rev the engine too right?
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Old 10-20-2005, 01:53 PM   #21
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Don't rev the engine past 2k RPM. You should wiat for the fans to kick on and the coolant will get sucked down.

All of this info is in the thread I mentioned in the coolant FAQ
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Old 10-20-2005, 02:14 PM   #22
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No reving, idle is fine for the coolant flow. As long as the level rises and the top coolant tank isn't empty (coolant rising to the top of it) then it's good to go. Also, you can gauge the coolant flow by sqeezing the top radiator hose. When you do that you'll see the coolant level raise and lower in the top tank. As long as the top radiator hose is hot and there's resistance to your sqeezing the thermostat is open and flowing. Then just make sure the top tank isn't below the neck and put the cap on it.
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Old 10-20-2005, 06:46 PM   #23
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Thanks guys I am still waiting on the dealership to resolve this they didn't even look at it again today. Its been there since Saturday if they can't fix it tom I am having it flatbedded back to Metric in Huntington where they know how to fix things. I swear its just one guy at Liberty in NJ.
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Old 10-23-2005, 07:47 PM   #24
wrxspdr
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Default Sorry for the delay

Car Fixed guess what ...air in the system a few other things too. The fuse for the electric fan was blown. I wouldn't of even thought of that I bet that water I drove through did that and as soon as I was stoped in traffic it became noticeable. Also since I run all samco hoses the weakest thing was prob the radiator. So new Radiator, Thermostat, and fuse not the end of the world. No signs of head gasket issue Thankfully!! Compression test and leakdown passed fine. They even took a few hours of labor off for there extra diagnosis. Thumbs up to Liberty Subaru in NJ even if they take a real long time...nice people.
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Old 10-23-2005, 08:42 PM   #25
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Good to hear-
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